<template>
  <div>
    <!-- 面包屑导航 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图区 -->
    <el-card>
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getGoodsList"> 
            <template #append>
              <el-button icon="el-icon-search" @click="getGoodsList"></el-button>
            </template>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="goAddpage">添加商品</el-button>
        </el-col>
      </el-row>

      <!-- table表格区 -->
      <el-table :data="goodslist" border stripe>
        <el-table-column type="index" label="#"> </el-table-column>
        <el-table-column label="商品名称" prop="goods_name"> </el-table-column>
        <el-table-column label="商品价格" prop="goods_price" width="95px">
        </el-table-column>
        <el-table-column label="商品重量" prop="goods_weight" width="70px">
        </el-table-column>
        <el-table-column label="商品创建时间" prop="add_time" width="140px">
          <template slot-scope="scope">
            {{ scope.row.add_time | dateFormat }}
          </template>
        </el-table-column>
        <el-table-column label="操作" width="160px">
          <template slot-scope="scope">
            <el-button type="primary" size="mini">编辑</el-button>
            <el-button type="danger" size="mini" @click="removeById(scope.row.goods_id)">删除</el-button>
          </template>
        </el-table-column>
      </el-table>

      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[5, 10, 15, 20]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
        background
      >
      </el-pagination>
    </el-card>
  </div>
</template>

// 定义当前组件的行为
<script>
export default {
  // 私有数据节点
  data() {
    return {
      // 查询参数对象
      queryInfo: {
        query: "",
        pagenum: 1,
        pagesize: 10,
      },
      //   商品列表
      goodslist: [],
      // 总分页
      total: 0,
    };
  },

  created() {
    this.getGoodsList();
  },

  methods: {
    //   根据分页获取对应的商品列表
    async getGoodsList() {
      const { data: res } = await this.$http.get("goods", {
        params: this.queryInfo,
      });
      if (res.meta.status !== 200) {
        return this.$message.error("获取商品列表失败!");
      }
      this.$message.success("获取商品列表成功!");
      //   console.log(res.data)
      this.goodslist = res.data.goods;
      this.total = res.data.total;
      //   console.log(this.goodslist)
      //   console.log(this.total)
    },

    handleSizeChange(newSize){
        this.queryInfo.pagesize = newSize
        this.getGoodsList()
    },

    handleCurrentChange(newPage){
        this.queryInfo.pagenum=newPage
        this.getGoodsList()
    },

    removeById(goods_id){
        this.$confirm('此操作将永久删除该商品, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning',
        })
          .then(async () => {
            const {data:res} = await this.$http.delete(`goods/${goods_id}`)
            if(res.meta.status!==200){
                return this.$message.error('删除商品失败!')
            }
            this.$message({
              type: 'success',
              message: '删除成功!',
            })
            this.getGoodsList()
          })
          .catch(() => {
            this.$message({
              type: 'info',
              message: '已取消删除',
            })
          })
    },
    // 跳转到添加商品页面
    goAddpage(){
        // 路由导航到/goods/add页面
        this.$router.push('/goods/add')
    }
  },
};
</script>

<style lang="less" scoped>
.el-pagination{
    margin:15px
}
</style>